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Finding the Fourth Proportional to 328,210.74, 492,272.35 and 91,533.60

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Solution

The fourth proportional to 328,210.74, 492,272.35 and 91,533.60 is: 137,288.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,210.74 : 492,272.35 = 91,533.60 : x
  2. Step 2: Convert to fraction form
    328,210.74/492,272.35 = 91,533.60/x
  3. Step 3: Cross multiply
    328,210.74x = 492,272.35 × 91,533.60
  4. Step 4: Simplify right side
    328,210.74x = 45,059,460,375.96
  5. Step 5: Solve for x
    x = 45,059,460,375.96/328,210.74
  6. Step 6: Final answer
    x = 137,288.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.